C++ Assignment

Write a menu-driven program that will (1) create, update and display inventory data using an Inventory class, (2) create a binary Transaction file, (3) apply the transactions against the inventory, and (4) calculate a profit projection for inventory items. There are two .h files needed for this exercise and the binary Transaction file. I have the InventoryClass.h and main code below. I am missing the InventoryCostClass.h which defines InventoryCostClass that is derived from InventoryClass.

Create file InventoryCostClass.h which defines InventoryCostClass that is derived from InventoryClass. The InventoryCostClass should have the following members:

A member variable for wholesale cost (a double)

A member variable for retail price (a double)

A member variable for the inventory update date in the format mm/dd/yyyy

A constructor and the appropriate set and get functions

A print function that overrides the print function in the base class. The InventoryCostClasss print function should invoke the InventoryClasss print function and then display the wholesale cost, retail price, and inventory update date

Feel free to add any additional member functions you might need.

In the main function, the program will repeatedly display a menu containing several options:

Store the Inventory: In main, create a size 50 array (using dynamic allocation) of Inventory objects. In a function, have the user enter the inventory data. Validate the data as follows: the item ID is 6 digits, each cost and price is greater than zero, and wholesale cost is less than retail price.

Create Transactions: in the second function, create a binary Transaction file containing multiple sets of 3 elements:

-item ID-6 digits

-transaction code (AI-add to inventory; RI-reduce from inventory; CW-change wholesale cost; CR-change retail price; CD-change item description)

-transaction data (for AI and RI-integers; for CW and CR-double; for CD-up to 50 characters)

Have the user enter the binary file name (of your choosing) in main, but open the binary file in the second function. Also have the user enter the data for the binary file in the function. Validate the transaction data as described above.

Update Inventory: in a function, match the transactions in the binary file to the array of Inventory objects and update the array of objects (remember to update the date field with today's date if the quantity is changed).

Display Inventory: in a function, display the updated Inventory data.

Compute a Profit Projection: in a function, have the user enter the item id for a which profit projection is desired. Compute the profit projection using the formula ((retail price * quantity on hand) (wholesale cost * quantity on hand)). Display the Item ID, item description, profit projection.

InventoryClass.h \\ Code starts here

#ifndef INVENTORYCLASS_H #define INVENTORYCLASS_H #include #include using namespace std; class InventoryClass { protected: int itemID; string itemDescrip; // max 50 characters int itemCount; public: // constructors InventoryClass() { itemID = 0, itemCount = 0, itemDescrip = ""; }

// getters int getItemID() const { return itemID; } int getItemCount() const { return itemCount; } string getDescrip() const { return itemDescrip; }

// setters void setItemID(int id) { itemID = id; } void setItemCount(int iCount) { itemCount = iCount; } void setDescrip(string descrip) { itemDescrip = descrip; } // Main Print Function virtual void printData() { cout << "Item ID: #"; cout << getItemID() << endl; cout << "Item Description: "; cout << getDescrip() << endl; cout << "Item Quantity: "; cout << getItemCount() << endl; }

};

#endif

main.cpp \\code starts here

#include #include "InventoryCostClass.h" #include #include #include #include using namespace std;

const int TSIZE = 3; const int DESCSIZE = 51; struct transactionFile { int itemId = 0; char transCode[TSIZE]; // 2 + 1 for the null terminator int quant = 0; double wholeSaleCost = 0; double retailPrice = 0; char desc[DESCSIZE] =""; // 50 + 1 for the null terminator };

ofstream dataFile; ifstream dataFileIn; int displayMenu(); void loadInventory(InventoryCostClass[], int &, InventoryCostClass[]); double verifyWholesaleCost(string); double verifyRetailPrice(string); void createTransFile(string, InventoryCostClass[]); void updateInventory(InventoryCostClass[], int, int &, InventoryCostClass[]); void printOrigInventory(InventoryCostClass[], int); void printNewInventory(InventoryCostClass[], int); void computeProfit(InventoryCostClass[], int);

int main() { int userChoice, arrayCounter = 0, updateCounter = 0, marker = 0, marker2 = 0, marker3 = 0; string fileName; InventoryCostClass *inventoryItems; InventoryCostClass *inventoryItemsCopy; inventoryItemsCopy = new InventoryCostClass[50]; inventoryItems = new InventoryCostClass[50]; userChoice = displayMenu(); // calls displayMenu

cout << setprecision(2) << fixed;

while (1) // runs an infinte loop for the menu selection switch statement { switch (userChoice) { case 1: loadInventory(inventoryItems, arrayCounter, inventoryItemsCopy); marker = 1; // flags from 0 to 1 after the user selects this function break; case 2: if (marker == 1) // checks if user used the loadInventory function - if so allows use of createTransFile { printOrigInventory(inventoryItems, arrayCounter); // calls printOrigInventory function } else cout << "No inventory to print" << endl; break; case 3: if (marker == 1) // checks if user used the loadInventory function - if so allows use of createTransFile { cout << "What do you want to name your inventory file?: "; getline(cin, fileName); // asks for the file name the user wants for his transaction file createTransFile(fileName, inventoryItemsCopy); // calls createTransFile function passing file name marker2 = 1; // new flag set to 1 if user creats transaction file } else cout << "No Inventory Exists... Make one first. "; // if user didnt create inventory error couts cout << endl; break; case 4: if (marker2 == 1) // checks if a transaction file was created - if so user may use updateInventory function { cout << "Updating Inventory... " << endl; updateInventory(inventoryItems, arrayCounter, updateCounter, inventoryItemsCopy); // calls updateInventory function marker3 = 1; // sets new flag to 1 cout << "--UPDATE COMPLETE-- " << endl; } else cout << "Be sure you have an Inventory and created a transaction file "; cout << endl; break; case 5: if (marker3 == 1) // if user updated their inventory, then they can print the updated inventory { printNewInventory(inventoryItemsCopy, updateCounter); } else cout << "The inventory hasn't been updated yet "; // if not, an error couts break; case 6: if (marker == 1) { computeProfit(inventoryItemsCopy, arrayCounter); // calls computeProfit function } else { cout << "You must enter an inventory before projecting profit." << endl; } break; case 7: cout << "Exiting the Program "; // exits if user types 7 break; default: cout << "User selection is invalid. Select a number between 1 and 7. "; cout << "Enter your selection : "; } if (userChoice == 7) // 7 ends loop break; userChoice = displayMenu(); // calls menu and returns the user's selection again }

delete [] inventoryItems; // deletes pointer to inventoryItems object array delete[] inventoryItemsCopy; // deletes pointer to inventoryItemsCopy array system("pause"); return 0; } void computeProfit(InventoryCostClass items[], int itemCounter) { string idStr = ""; transactionFile transF[51]; int idMarker, transCount = 0; bool flag = false; double ProfitProjection = 0.0;

while (1) // infinite loop { idStr.clear(); // clears idStr variable cout << endl; cout << "Enter the Item ID or enter -1 to abort: "; cin >> idStr; cin.ignore(); if (idStr == "-1") // if user types -1 the loop ends as does the function break; while (idStr.length() != 6) // a loop that checks if the user's input is 6 characters long { cout << "The item ID must be 6 characters long. "; cout << "Enter the item ID: "; idStr.clear(); cin >> idStr; cin.ignore(); } transF[transCount].itemId = atoi(idStr.c_str()); // converts user's input to an integer flag = false; while (flag == false) { for (int i = 0; i < 50; i++) // checks if user's input matches an item in the inventory. If it doesn't then the user must retype { if (transF[transCount].itemId != items[i].getItemID()) // flag stays false if there isn't a match flag = false; else if (transF[transCount].itemId == items[i].getItemID()) // flag changes to true if there is a match { flag = true; idMarker = i; // variable idMarker is set to the same as the counter variable i so the same item can be used outside of scope ProfitProjection = 0; // profit reset to 0 // profit projection for specific item in the array is calculated ProfitProjection = (((items[i].getRetailPrice()) * (items[i].getItemCount())) - ((items[i].getWholeSale()) * (items[i].getItemCount()))); break; } else if (transF[transCount].itemId == -1) { break; // if user types -1 loop is terminated } } if (flag == true) // if flag switches to true then data is pulled from array that relates to the item's ID { cout << "Item ID: "; cout << items[idMarker].getItemID() << endl; cout << "Item Description: "; cout << items[idMarker].getDescrip() << endl; cout << "Profit Projection: $"; cout << ProfitProjection; cout << endl; break; } if (transF[transCount].itemId == -1) // breaks out of function if user aborts break; // exits final loop if user types -1 cout << "Your entry does not match an item in stock. Please re-enter" << endl; cout << "Enter the Item ID or enter -1 to abort: "; cin >> transF[transCount].itemId; cin.ignore(); } if (transF[transCount].itemId == -1) // breaks out of function if user aborts break; transCount++; } } void printOrigInventory(InventoryCostClass origInven[], int invenCount) { cout << "Original Invntory: " << endl; for (int i = 0; i < invenCount; i++) // calls printData function in a forloop that couts everything in the original loop { origInven[i].printData(); cout << endl; } } void printNewInventory(InventoryCostClass updatedInven[], int updateCount) { cout << "Updated Invntory: " << endl; for (int i = 0; i < updateCount; i++) // prints everything in the updated inventory array { updatedInven[i].printData(); cout << endl; } } void updateInventory(InventoryCostClass origInven [], int invenCoun, int &updateCount, InventoryCostClass inventoryCopy[]) { bool flag = false; int transCount = 0; string fNameOpen = "", fileName = "", userInput = "1"; string wholeSale = "", retail = "", idStr = ""; transactionFile transU[50];

cout << "Enter the name of the data file: "; cin >> fileName; cin.ignore(); updateCount = invenCoun; // update the inventory copy's count

for (int i = 0; i < fileName.length(); i++) // checks if user typed an extension. If they did, it's ignored. { if (fileName[i] == '.') { break; } fNameOpen += fileName[i]; } dataFileIn.open(fNameOpen + ".dat", ios::in | ios::binary); // opens a binary file named what the user chose if (dataFileIn) {

while (!dataFileIn.eof()) // reads in transactionFile file until EOF { dataFileIn.read(reinterpret_cast(&transU[transCount]), sizeof(transU[transCount])); transCount++; // keeps track of how many items are in the file } cout << endl; for (int i = 0; i < invenCoun; i++) //determines what to do based on the transaction code read in from the transaction file { for (int j = 0; j < transCount; j++) { if (origInven[i].getItemID() == transU[j].itemId) { if (transU[j].transCode[0] == 'A' && transU[j].transCode[1] == 'I') { inventoryCopy[i].setItemCount(inventoryCopy[i].getItemCount()+transU[j].quant); // adds quantity from file to current quantity inventoryCopy[i].setinventoryUpdateDate(); // updates date } else if (transU[j].transCode[0] == 'R' && transU[j].transCode[1] == 'I') { inventoryCopy[i].setItemCount(inventoryCopy[i].getItemCount() - transU[j].quant); // subtracts quantity from file from current quantity if (inventoryCopy[i].getItemCount() <= 0) inventoryCopy[i].setItemCount(0); // if value dips below 0 then value is set to 0 inventoryCopy[i].setinventoryUpdateDate(); // date is updated } else if (transU[j].transCode[0] == 'C' && transU[j].transCode[1] == 'W') { inventoryCopy[i].setWholeSale(transU[j].wholeSaleCost); // updates wholesale cost } else if (transU[j].transCode[0] == 'C' && transU[j].transCode[1] == 'R') { inventoryCopy[i].setRetailPrice(transU[j].retailPrice); // updates retail price } else if (transU[j].transCode[0] == 'C' && transU[j].transCode[1] == 'D') { inventoryCopy[i].setDescrip(transU[j].desc); // updates item description } } } } dataFileIn.close(); // closes data file } else cout << "File Not Found. "; } void createTransFile(string fName, InventoryCostClass inventory[]) { bool flag = false, firstadd = false, firstsubb = false; long offset = 0; int transCount = 0, idMarker; double wholesaleCost = 0, retailPrice = 0; string fNameEntry, userInput = "1", wholeSaleEntry = "", retailEntry = ""; string idStr=""; transactionFile transF[50];

for (int i = 0; i < fName.length(); i++) // checks if user typed an extension. If they did, it's ignored. { if (fName[i] == '.') { break; } fNameEntry += fName[i]; } dataFile.open(fNameEntry + ".dat", ios::out | ios::binary); // starts a new binary file named what the user chose do { idStr.clear(); cout << "Enter the Item ID or enter -1 to abort: "; cin >> idStr; cin.ignore(); if (idStr == "-1") break; while (idStr.length() != 6) // a loop that checks if the user's input is 6 characters long { cout << "The item ID must be 6 characters long. "; cout << "Enter the item ID: "; idStr.clear(); cin >> idStr; cin.ignore(); } transF[transCount].itemId = atoi(idStr.c_str()); // converts user's input to an integer flag = false; while (flag == false) { for (int i = 0; i < 50; i++) // checks if user's input matches an item in the inventory. If it doesn't then the user must retype { if (transF[transCount].itemId != inventory[i].getItemID()) flag = false; else if (transF[transCount].itemId == inventory[i].getItemID()) { flag = true; idMarker = i; break; } else if (transF[transCount].itemId == -1) { break; } } if (flag == true) break; cout << "Your entry does not match an item in stock. Please re-enter" << endl; idStr.clear(); cout << "Enter the Item ID or enter -1 to abort: "; cin >> idStr; cin.ignore(); if (idStr == "-1") // exits loop if user types -1 break; while (idStr.length() != 6) // a loop that checks if the user's input is 6 characters long { cout << "The item ID must be 6 characters long. "; cout << "Enter the item ID: "; idStr.clear(); cin >> idStr; cin.ignore(); } transF[transCount].itemId = atoi(idStr.c_str()); // converts user's input to an integer } if (idStr == "-1") break;

cout << endl; cout << "Enter the Transaction Code; AI(Add to Inventory)" << endl; cout << "RI(Reduce From Inventory)," << "CW(Change Wholesale Cost), " << endl; cout << "CR(Change Retail Price), CD(Change item Description) : "; cout << endl;

cin.getline(transF[transCount].transCode, sizeof(transF[transCount].transCode)); for (int i = 0; i < TSIZE; i++) // capitalizes user input { transF[transCount].transCode[i] = (toupper(transF[transCount].transCode[i])); } while (1) { if (transF[transCount].transCode[0] == 'A' && transF[transCount].transCode[1] == 'I') // if user types AI then the user is prompted to type how many to add to the structure { cout << "How Much Would You Like To Add To The Item's Inventory: "; cin >> transF[transCount].quant; cin.ignore(); break; } else if (transF[transCount].transCode[0] == 'R' && transF[transCount].transCode[1] == 'I') // if user types RI then the user is prompted to type how many to subtract from the array and that value is sent to the structure { cout << "How Much Would You Like To Subtract From The Item's Inventory: "; cin >> transF[transCount].quant; cin.ignore(); break; } else if (transF[transCount].transCode[0] == 'C' && transF[transCount].transCode[1] == 'W') // overrites wholesale { cout << "Enter new Wholesale Cost: "; cin >> wholeSaleEntry; cin.ignore(); wholesaleCost = verifyWholesaleCost(wholeSaleEntry); // makes sure the value is greater than 0 while (wholesaleCost > (inventory[idMarker].getRetailPrice())) // verifies the wholesale cost is less than the retail price { cout << "The wholesale Cost is greater than the Retail Price of this item. "; cout << "Re-enter with a Retail Price that is greater than the Wholesale Cost. "; cout << "Enter the Wholesale Cost: "; cin >> wholeSaleEntry; cin.ignore(); wholesaleCost = verifyWholesaleCost(wholeSaleEntry);

} transF[transCount].wholeSaleCost = verifyWholesaleCost(wholeSaleEntry); break; } else if (transF[transCount].transCode[0] == 'C' && transF[transCount].transCode[1] == 'R') { cout << "Enter new Retail Price: "; cin >> retailEntry; cin.ignore(); retailPrice = verifyRetailPrice(retailEntry); // makes sure value is greater than 0 while (retailPrice < (inventory[idMarker].getWholeSale())) // verifies that the wholesale cost is less than the retail price { cout << "The wholesale Cost is greater than the Retail Price of this item. "; cout << "Re-enter with a Retail Price that is greater than the Wholesale Cost. "; cout << "Enter the Retail Price: "; cin >> retailEntry; cin.ignore(); retailPrice = verifyRetailPrice(retailEntry); }

transF[transCount].retailPrice = verifyRetailPrice(retailEntry); break; } else if (transF[transCount].transCode[0] == 'C' && transF[transCount].transCode[1] == 'D') // changes description { cout << "Enter new Item Description (up to 50 characters): " << endl; cin.getline(transF[transCount].desc, sizeof(transF[transCount].desc)); break; } else { cout << "Invalid Entry" << endl; cout << endl; cout << "Enter the Transaction Code; AI(Add to Inventory)" << endl; cout << "RI(Reduce From Inventory)," << "CW(Change Wholesale Cost), " << endl; cout << "CR(Change Retail Price), CD(Change item Description) : "; cout << endl; cin.getline(transF[transCount].transCode, sizeof(transF[transCount].transCode)); for (int i = 0; i < 2; i++) // capitalizes user input { transF[transCount].transCode[i] = (toupper(transF[transCount].transCode[i])); // writes transaction code to data file } } } dataFile.write(reinterpret_cast(&transF[transCount]), sizeof(transF[transCount])); // writes structure array to data file transCount++; offset = transCount; if (transCount == 49) break; // breaks before array reaches max quantity cout << "Would you to perform another transaction? (1) for Yes (2) for No: "; cin >> userInput; cin.ignore(); while (userInput != "1" && userInput != "2") { cout << "Invalid Input, Select either 1 or 2 "; cout << "Would you to perform another transaction? (1) for Yes (2) for No: "; cin >> userInput; cin.ignore(); } } while (userInput != "2"); // 2 aborts the function dataFile.close(); } int displayMenu() { int selection;

cout << endl; cout << "----------------------------------------------- "; cout << "1: Create an Inventory: "; cout << "2: Display The Original Inventory "; cout << "3: Create Transaction File "; cout << "4: Update Inventory "; cout << "5: Display Updated Inventory "; cout << "6: Profit Projection "; cout << "7: Exit "; cout << "----------------------------------------------- "; cout << "Enter your selection: "; cin >> selection; cin.ignore(); while (selection < 0 || selection > 7) { cout << "User Choice Invalid. "; cout << "Select a number between 1 and 6 "; cout << "Enter your selection: "; cin >> selection; cin.ignore(); } cout << endl; return selection; // returns user's choice as an int }

// loadInventory function void loadInventory(InventoryCostClass items[], int &count, InventoryCostClass inventoryCopy[]) { int iD, cont = 0, itemCo = 0; string descrip = "", date ="", idStr = "", wholesaleEntry = "", wholesaleCStr = "", retailEntry = "", retailCStr=""; double wholesaleCost, retailPrice; count = 0;

cout << "Creating Inventory: " << endl; while (1) // infinite loop { cout << "Enter the item ID: "; cin >> idStr; cin.ignore(); while (idStr.length() != 6) // validates entry length { cout << "The item ID must be 6 characters long. "; cout << "Enter the item ID: "; cin >> idStr; cin.ignore(); } iD = atoi(idStr.c_str()); // converts entry to an int for (int i = 0; i < count; i++) // runs through array { while (iD == items[i].getItemID()) // checks if the item ID already exists { cout << "An item of that ID Number already exists "; cout << "Enter the item ID: "; cin >> idStr; cin.ignore(); while (idStr.length() != 6) { cout << "The item ID must be 6 characters long. "; cout << "Enter the item ID: "; cin >> idStr; cin.ignore(); } iD = atoi(idStr.c_str()); } } cout << "Enter the Item Description: "; getline(cin, descrip); while (descrip.length() > 50) // validates description's length { cout << "The description is too long: Max Length is 50 characters" << endl; cout << "Enter the Item Description: "; getline(cin, descrip); } cout << "Enter the item's quantity: "; cin >> itemCo; cin.ignore();

cout << "Enter the Wholesale Cost: "; cin >> wholesaleEntry; cin.ignore(); wholesaleCost = verifyWholesaleCost(wholesaleEntry); // checks that whole sale cost is greater than 0 cout << "Enter the Retail Price: "; cin >> retailEntry; cin.ignore(); retailPrice = verifyRetailPrice(retailEntry); // checks that retail price is greater than 0

while (wholesaleCost > retailPrice) // makes sure the retail price is greater than the wholesale cost { cout << "The wholesale Cost is greater than the Retail Price of this item. "; cout << "Re-enter with a Retail Price that is greater than the Wholesale Cost. "; cout << "Enter the Wholesale Cost: "; cin >> wholesaleEntry; cin.ignore(); wholesaleCost = verifyWholesaleCost(wholesaleEntry);

cout << "Enter the Retail Price: "; cin >> retailEntry; cin.ignore(); retailPrice = verifyRetailPrice(retailEntry); } cout << "Enter the date mm/dd/yyyy: "; cin >> date; // user enters date manually items[count].setItemID(iD); items[count].setDescrip(descrip); items[count].setItemCount(itemCo); items[count].setWholeSale(wholesaleCost); items[count].setRetailPrice(retailPrice); items[count].setUpdateDate(date);

cout << endl; cout << "Would you like to enter another item? 1 for Yes, 2 for No: "; cin >> cont; while (cont < 1 || cont > 2) { cout << "Invalid Entry, select 1 or 2 "; cout << "Would you like to enter another item? 1 for Yes, 2 for No: "; cin >> cont; } cout << endl; count++;

if (cont == 2) { for (int i = 0; i < count; i++) // copies data to a duplicate array { inventoryCopy[i].setItemID(items[i].getItemID()); inventoryCopy[i].setDescrip(items[i].getDescrip()); inventoryCopy[i].setItemCount(items[i].getItemCount()); inventoryCopy[i].setWholeSale(items[i].getWholeSale()); inventoryCopy[i].setRetailPrice(items[i].getRetailPrice()); inventoryCopy[i].setUpdateDate(items[i].getDate()); } break; } }

} double verifyWholesaleCost(string cost) { string wholesaleCStr = ""; double wholesaleC = 0.0; for (int i = 0; i < cost.length(); i++) { if (isdigit(cost[i])) { wholesaleCStr += cost[i]; } else if (cost[i] == '.') { wholesaleCStr += cost[i]; } else if (cost[i] == '-') { wholesaleCStr += cost[i]; } } wholesaleC = atof(wholesaleCStr.c_str()); // converts string to a double while (wholesaleC <= 0) // verifies that wholesaleCost is greater than or equal to 0 { wholesaleCStr.clear(); // clears wholesale string and prompts user to retype data cout << "Enter a cost greater than $0 "; cout << "Enter the Wholesale Cost: "; cin >> cost; cin.ignore();

for (int i = 0; i < cost.length(); i++) { if (isdigit(cost[i])) { wholesaleCStr += cost[i]; } else if (cost[i] == '.') { wholesaleCStr += cost[i]; } else if (cost[i] == '-') { wholesaleCStr += cost[i]; }

} wholesaleC = atof(wholesaleCStr.c_str()); }

return wholesaleC; // returns the wholesaleC as a double } double verifyRetailPrice(string retailE) { string retailCStr = ""; double retailP = 0.0;

for (int i = 0; i < retailE.length(); i++) { if (isdigit(retailE[i])) { retailCStr += retailE[i]; } else if (retailE[i] == '.') { retailCStr += retailE[i]; } else if (retailE[i] == '-') { retailCStr += retailE[i]; } }

retailP = atof(retailCStr.c_str()); while (retailP <= 0) { retailCStr.clear(); cout << "Enter a price greater than $0 "; cout << "Enter the Retail Price: "; cin >> retailE; cin.ignore();

for (int i = 0; i < retailE.length(); i++) { if (isdigit(retailE[i])) { retailCStr += retailE[i]; } else if (retailE[i] == '.') { retailCStr += retailE[i]; } else if (retailE[i] == '-') { retailCStr += retailE[i]; } } retailP = atof(retailCStr.c_str()); }

return retailP; }